一种高阻带抑制低通滤波器的设计

发布时间：2018-05-27 23:04

本文选题：滤波器解决方案软件 + 椭圆函数　；参考：《微波学报》2017年02期

【摘要】：微带滤波器的传统设计方法包含大量理论计算与公式推演,整个设计过程颇为繁琐。利用Filter Solutions这款成熟的滤波器设计软件,提出了一种快速设计微带滤波器的方法。将设计目标导入Filter Solutions中得到微带低通滤波器的初值,再应用ADS软件对模型初值进行仿真优化,最终完成了一种高阻带抑制微带低通滤波器(DC~3 GHz)的设计。该微带低通滤波器的仿真结果很好地满足了设计目标,并在RT/Duroid 6006基板上对其进行了实现。实测结果表明,其带内插损小于1.3 dB,驻波小于1.3,3.74 GHz处的阻带抑制大于60 dB,整个阻带一直到6.8 GHz都有大于40 dB的抑制,且尺寸仅为18.1 mm×9.1 mm×0.635 mm。该微带低通滤波器的实测结果与仿真结果有较好的吻合,表明利用Filter Solutions辅助设计滤波器简便快捷,完全可以满足工程设计要求。
[Abstract]:The traditional design method of microstrip filter includes a lot of theoretical calculation and formula deduction. A fast design method of microstrip filter is proposed by using Filter Solutions, which is a mature filter design software. The initial value of microstrip low-pass filter is obtained by introducing the design object into Filter Solutions, and the model initial value is simulated and optimized by using ADS software. Finally, the design of a high-stopband suppression microstrip low-pass filter (DC3GHz) is completed. The simulation results of the microstrip low-pass filter well meet the design goal and are implemented on the RT/Duroid 6006 substrate. The measured results show that the band insertion loss is less than 1.3 dB, and the stopband suppression is greater than 60 dB at the standing wave of less than 1.3 nm 3.74 GHz. The whole stopband is more than 40 dB up to 6.8 GHz, and the size is only 18.1 mm 脳 9.1 mm 脳 0.635 mm. The measured results of the microstrip low-pass filter are in good agreement with the simulation results. It shows that the Filter Solutions aided design filter is simple and fast and can meet the requirements of engineering design.
【作者单位】：中国电子科技集团公司第三十六研究所;
【分类号】：TN713.4

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